m^2-6m+9与|n-1|互为相反数,则(m/n-n/m)/(m/n)为?

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m^2-6m+9与|n-1|互为相反数,则(m/n-n/m)/(m/n)为?
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m^2-6m+9与|n-1|互为相反数,则(m/n-n/m)/(m/n)为?
m^2-6m+9与|n-1|互为相反数,则(m/n-n/m)/(m/n)为?

m^2-6m+9与|n-1|互为相反数,则(m/n-n/m)/(m/n)为?
(m-3)^2大于等于0,绝对值,也大于等于0
但是两者互为相反数,所以两者都是0,
所以(m-3)^2=0,m=3,n-1的绝对值=0,n=1,
(m/n-n/m)/(m/n)=(3/1-1/3)/(3/1)=8/9

8/9,明显m=3,n=1

m^2什么意思